Reye's syndrome is a rare but serious condition affecting children and teenagers.
It is characterized by swelling in the brain and fatty liver.
The exact cause is often unknown, but it is associated with viral infections and aspirin use.
Purpose:
To investigate the role of urea cycle enzyme deficiencies in Reye's syndrome.
To explore potential toxic and metabolic factors contributing to the condition.
Summary:
This study describes six fatal cases of Reye's syndrome despite treatment with exchange-transfusions and infusions of citrulline and ornithine.
Autopsies revealed cerebral edema and fatty liver degeneration.
Enzyme analysis showed absent or normal ornithine transcarbamylase (OTC) activity in three patients, and partial carbamoyl phosphate synthetase (CPS) deficiency in one.
The findings suggest Reye's syndrome may involve factors beyond urea cycle enzyme deficiencies, including toxic and metabolic causes.
Impact:
Highlights the complex etiology of Reye's syndrome, extending beyond known urea cycle disorders.
Underscores the need for further research into the multifactorial nature of Reye's syndrome.
Informs clinical understanding and potential diagnostic approaches for Reye's syndrome.